Marking tool for oblique crossing hole of large tank

Abstract

The utility model discloses a large tank oblique crossing hole marking tool. The large tank oblique crossing hole marking tool comprises a V-shaped base, wherein the V-shaped base comprises two wing plates and a transverse plate, wherein the two wing plates are in bilateral symmetry, and the transverse plate is fixedly connected to the top ends of the two wing plates; one end of the transverse plate is hinged to the bottom end of a support, the top end of the support is fixedly connected with the top end of a vertical shaft, and the lower end of the vertical shaft is rotatably connected to the center of a rotating disc. A plurality of guide sleeves which are uniformly distributed at intervals in the circumferential direction are fixedly connected to the turntable; the middle part of the pen holder can be inserted into the guide sleeve in an up-down sliding manner; the spring is sleeved on the pen holder; a connecting rod is hinged to the side wall of the support, the other end of the connecting rod is hinged to a sliding block, and the sliding block is connected to the transverse plate in a sliding mode. The line drawing device is suitable for drawing lines before the pipeline connecting hole is formed in the tank body; the angle can be flexibly adjusted, and the device is suitable for drawing lines of oblique crossing holes at different angles.

Description

Technical Field

[0001] The utility model belongs to the technical field of tank container manufacturing, and relates to a scribing tool for large tank skew holes. Background Technique

[0002] Pipes are usually connected to the side wall of the tank container as the inlet and outlet channels for materials. During the production of the tank, it is necessary to draw lines at the positions where the pipes are connected, then cut the connection holes, and then weld the pipes. The problem is that for the connection holes of skew pipes, the shape is the intersection line of the pipe on the side wall of the tank, which is special and irregular. Manual scribing is not accurate enough, and the size of the cut connection holes is prone to exceed the tolerance, affecting the quality of pipe welding. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a scribing tool for large tank skew holes. The purpose is to design a scribing device according to the need of welding skew pipes on the tank, simulate the angle and position of pipe installation, draw the intersection line position of pipe connection on the side wall of the tank, so as to facilitate cutting, improve the dimensional accuracy of the connection holes, and further improve the quality of pipe welding.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A scribing tool for large tank skew holes, including a V-shaped base. The V-shaped base includes two symmetrically arranged wing plates on the left and right and a cross plate fixed at the top ends of the two wing plates. When the V-shaped base is located on the side wall of the tank, the inner sides of the two wing plates abut against the side wall of the tank, and the cross plate is suspended above the side wall of the tank. One end of the cross plate is hinged to the bottom end of a bracket, and the top end of the bracket is fixedly connected to the top end of a vertical shaft. The lower end of the vertical shaft is connected to a rotatable turntable. A plurality of guide sleeves are fixedly connected to the turntable at circumferentially spaced intervals. The middle part of the pen rod is slidably inserted into the guide sleeve up and down. A first stop rod and a second stop rod are respectively fixed on the side wall and the top of the pen rod. A spring is sleeved on the pen rod, and its upper and lower ends respectively abut against the bottom end of the turntable and the first stop rod, for driving the pen rod to move downward. The second stop rod is located above the guide sleeve, for preventing the pen rod from disengaging from the guide sleeve. A connecting rod is hinged to the side wall of the bracket, and the other end of the connecting rod is hinged to a slider. The slider is provided with a through hole, and a bolt is inserted into the through hole. The bolt is inserted into a preset chute on the cross plate, for when the nut connected to the bolt is tightened, connecting the slider and the cross plate into one body.

[0005] As a further optimization, the bracket includes a column and a cross beam fixed at the top end of the column. The lower end of the column is hinged to the cross plate, and the top end of the vertical shaft is fixedly connected to the end of the cross beam. The column is arranged parallel to the vertical shaft.

[0006] As a further optimization, the nut is a wing nut and is located above the slider.

[0007] As a further optimization, an angle gauge is fixedly connected to the cross plate for measuring the angle between the vertical column and the cross plate.

[0008] As a further optimization, the lower end of the pen rod is provided with a pointed head.

[0009] As a further optimization, the lower end of the vertical shaft is provided with a convex ring, and the convex ring is inserted into a blind hole preset in the center of the turntable; the cover plate is sleeved on the vertical shaft through a sleeved hole preset in its center, and a convex block is provided at its lower end for pressing against the convex ring when the cover plate covers the upper end of the blind hole; the cover plate is detachably connected to the turntable for the turntable to be rotatably connected to the lower end of the vertical shaft.

[0010] As a further optimization, a laser pen is fixedly connected to the center of the lower end of the turntable, and the irradiation direction of the laser pen coincides with the axis of the turntable.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: the structure of the present utility model is simple, easy to manufacture, and low in cost, and it is suitable for drawing lines before opening a pipeline connection hole in a tank body; and the angle can be flexibly adjusted, which is suitable for drawing lines of obliquely intersecting holes at different angles, improving the cutting precision of the connection hole and also improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0013] Figure 2 is Figure 1 a cross-sectional view of the position of the nut;

[0014] Figure 3 is a top view of the turntable of Embodiment 1 of the present utility model;

[0015] Figure 4 is Figure 3 a cross-sectional view, with some of the pen rod omitted.

[0016] The corresponding relationship between the technical features in the drawings and the reference numerals is as follows: V-shaped base 1; wing plate 11; cross plate 12; chute 13; angle gauge 14; bracket 2; vertical shaft 21; vertical column 22; cross beam 23; convex ring 24; turntable 3; guide sleeve 31; cover plate 32; convex block 33; laser pen 34; pen rod 4; first stop rod 41; second stop rod 42; pointed head 43; spring 5; connecting rod 6; slider 61; through hole 62; bolt 63; nut 64; tank body 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0018] Example 1. Please refer to Figures 1-4 , the present utility model provides a technical solution: a large tank obliquely intersecting hole scribing tool, including a V-shaped base 1. The V-shaped base 1 includes two laterally symmetrical wing plates 11 and a cross plate 12 fixedly connected to the tops of the two wing plates 11. When the V-shaped base 1 is located on the side wall of the tank 7, the inner sides of the two wing plates 11 abut against the side wall of the tank 7, and the cross plate 12 is suspended above the side wall of the tank 7; one end of the cross plate 12 is hinged to the bottom end of the bracket 2, and the top end of the bracket 2 is fixedly connected to the top end of the vertical shaft 21. The lower end of the vertical shaft 21 is rotatably connected to the center of the turntable 3; a plurality of circumferentially spaced and evenly distributed guide sleeves 31 are fixedly connected to the turntable 3; the middle part of the pen rod 4 is slidably inserted up and down in the guide sleeve 31; a first stop rod 41 and a second stop rod 42 are respectively fixedly provided on the side wall and the top of the pen rod 4; a spring 5 is sleeved on the pen rod 4, and its upper and lower ends respectively abut against the first stop rod 41 and the bottom end of the turntable 3 to drive the pen rod 4 to move downward; the second stop rod 42 is located above the guide sleeve 31 to prevent the pen rod 4 from detaching from the guide sleeve 31; a connecting rod 6 is hinged to the side wall of the bracket 2, the other end of the connecting rod 6 is hinged to a slider 61, and a through hole 62 is provided on the slider 61. A bolt 63 is inserted into the through hole 62; the bolt 63 is inserted into a preset chute 13 on the cross plate 12 to integrally connect the slider 61 and the cross plate 12 when the nut 64 connected to the bolt 63 is tightened.

[0019] When in use, first push the slider 61 to adjust the angle of the bracket 2, and then tighten the nut 64 to fix the angle of the bracket 2, that is, the angle between the axis of the turntable 3 and the cross plate 12 is fixed. And make the angle between the axis of the turntable 3 and the cross plate 12 be the angle between the axis of the pipeline to be installed and the axis of the tank 7. Then move the V-shaped base 1 to the preset position. At this time, the lower end of each pen rod 4 is driven by the force of the spring 5 and abuts against the side wall of the tank 7. Then rotate the turntable 3 so that the pen tip scratches on the side wall of the tank 7, and this scratch is the required intersecting line to be cut. Then, remove the V-shaped base and the bracket 2, and cut according to the scratch to obtain an obliquely intersecting connection hole.

[0020] Preferably, the lower end of the pen rod 4 is provided with a pointed head 43, and the scratch made by the pen tip is clearer and the line drawing effect is better.

[0021] The exemplary bracket 2 is such that the bracket 2 includes a vertical column 22 and a cross beam 23 fixedly connected to the top end of the vertical column 22. The lower end of the vertical column 22 is hinged to the cross plate 12. The top end of the vertical shaft 21 is fixedly connected to the end of the cross beam 23. The vertical column 22 is arranged parallel to the vertical shaft 21. It can be seen that the vertical shaft 21 is parallel to the vertical column 22, and the angle between the vertical column 22 and the cross plate 12 is the same as the angle between the turntable 3 and the cross plate 12.

[0022] At this time, in order to more conveniently measure the angle between the vertical column 22 and the cross plate 12, an angle gauge 14 is fixedly connected to the cross plate 12 for measuring the angle between the vertical column 22 and the cross plate 12. Measuring the angle is more convenient.

[0023] In order to facilitate the operation of screwing the nut 64, the nut 64 is a wing nut 64 and is located above the slider 61. The nut 64 can be screwed by hand.

[0024] An exemplary rotatable connection method between the vertical shaft 21 and the turntable 3 is as Figure 4 shown. The lower end of the vertical shaft 21 is provided with a convex ring 24. The convex ring 24 is inserted into a blind hole preset in the center of the turntable 3. The cover plate 32 is sleeved on the vertical shaft 21 through a sleeved hole preset in its center. The lower end of the cover plate 32 is provided with a convex block 33. When the cover plate 32 covers the upper end of the blind hole, the convex block 33 presses against the convex ring 24. The cover plate 32 is detachably connected to the turntable 3 for the turntable 3 to be rotatably connected to the lower end of the vertical shaft 21. Exemplarily, the cover plate 32 is detachably connected to the turntable 3 through a bolt 63, so that the vertical shaft 21 and the turntable 3 are still detachable. After replacing the turntable 3, different sizes of pipeline connection holes can be opened on the tank body 7. It can be seen that the convex block 33 cooperates with the blind hole to limit the axial sliding between the turntable 3 and the vertical shaft 21, so that the turntable 3 has only one degree of freedom of rotation around the vertical shaft 21.

[0025] In order to conveniently and quickly align the center of the connection hole, a laser pen 34 is fixedly connected to the center of the lower end of the turntable 3. The irradiation direction of the laser pen 34 coincides with the axis of the turntable 3. That is to say, when the light spot of the laser pen 34 aligns with the preset center of the circle, and the tip of the pen abuts against the side wall of the tank body 7 at a preset angle, it means that the position adjustment is in place, and then rotating the turntable 3 can obtain the drawing line of the pipeline connection hole.

[0026] The advantages of this embodiment are that the structure is simple, easy to manufacture, low in cost, suitable for drawing lines before opening pipeline connection holes on the tank body 7; and the angle can be flexibly adjusted, suitable for drawing lines of skew holes at different angles, improving the cutting accuracy of the connection holes and also improving the work efficiency.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large tank obliquely intersecting hole marking tool, comprising a V-shaped base (1), the V-shaped base (1) includes two symmetrically arranged wing plates (11) on the left and right and a transverse plate (12) fixedly connected to the tops of the two wing plates (11); characterized in that: One end of the horizontal plate (12) is hinged to the bottom end of the bracket (2). The top end of the bracket (2) is fixedly connected to the top end of the vertical shaft (21). The lower end of the vertical shaft (21) is connected to a rotatable turntable (3). A plurality of guide sleeves (31) evenly distributed at circumferential intervals are fixedly connected to the turntable (3). The middle part of the pen rod (4) is inserted into the guide sleeve (31) in a vertically slidable manner. A first stop rod (41) and a second stop rod (42) are respectively fixedly provided on the side wall and the top of the pen rod (4). A spring (5) is sleeved on the pen rod (4), and its upper and lower ends respectively abut against the bottom end of the turntable (3) and the first stop rod (41). The second stop rod (42) is located above the guide sleeve (31). A connecting rod (6) is hinged to the side wall of the bracket (2). The other end of the connecting rod (6) is hinged to a slider (61). A through hole (62) is provided on the slider (61). A bolt (63) is inserted into the through hole (62). The bolt (63) is inserted into a chute (13) preset on the horizontal plate (12) for integrally connecting the slider (61) and the horizontal plate (12) when a nut (64) connected to the bolt (63) is tightened.

2. The large tank skew hole marking tool according to claim 1, wherein: The bracket (2) includes a column (22) and a cross beam (23) fixedly connected to the top end of the column (22). The lower end of the column (22) is hinged to the horizontal plate (12). The top end of the vertical shaft (21) is fixedly connected to the end of the cross beam (23). The column (22) is arranged parallel to the vertical shaft (21).

3. A scribing tool for skew holes on a large tank body according to claim 1, characterized in that: [[ID=D3]]The nut (64) is a wing nut (64) and is located above the slider (61).

4. A large tank skew hole scribing tool according to claim 2, characterized in that: An angle gauge (14) is fixedly connected to the horizontal plate (12) for measuring the angle between the column (22) and the horizontal plate (12).

5. A large tank skew hole marking tool according to claim 1, characterized in that: The lower end of the pen rod (4) is provided with a pointed head (43).

6. A large tank skew hole scribing tool according to claim 1, characterized in that: The lower end of the vertical shaft (21) is provided with a convex ring (24). The convex ring (24) is inserted into a blind hole preset in the center of the turntable (3). A cover plate (32) is sleeved on the vertical shaft (21) through a sleeved hole preset in its center. A convex block (33) is provided at its lower end for the convex block (33) to press against the convex ring (24) when the cover plate (32) covers the upper end of the blind hole. The cover plate (32) is detachably connected to the turntable (3).

7. A scribing tool for skew holes of a large tank according to claim 1, characterized in that: A laser pointer (34) is fixedly connected to the center of the lower end of the turntable (3). The irradiation direction of the laser pointer (34) coincides with the axis of the turntable (3).

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